Improvement in apparatus for transmitting motion



UNITED STATEsN PATENT OFFICE.

EDWARD H. BANOROFT, OF SYRAOUSE, NEW YORK.

Specification forming part of Letters Patent No.` 117,503, dated Augustl, 1871.

To all whom it muy concern:

Be it known that I, EDWARD H. BANcRoET, of Syracuse, in the county ofOnondaga and State of New York, have invented a new and usefulImprovement in Apparatus for Tran smittin g Motion; and l do herebydeclare that the follow-Y ing is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to make and use thesame, reference being had to the accompanying drawing forming part ofthis speciiication.

This invention relates to improvements in apparatus for transmittingmotion from the horizontal shaft of a wind-wheel revolving` around avertical axis or other powers having` like action, and it consists in aconnection of two cranks on the said shaft by connecting-rods andcross-heads, or slides with a pair of reciprocating rods, so that thecross-heads or slides, and their supports which are mounted on thehorizontally-revolving frame by which the wind-wheel shaft is supported,may have the said horizontal. motion while transmittingthe reciprocatingmotion to the reciprocating rods, which impart motion to a revolvingshaft by two other connecting-rods and cranks, both pairs of the cranksbeing set perpendicular to each other for passing the dead-centers. Theinvention also comprises an arrangement of one of the said reciprocatingrods within the other, and the shaft driven by them abovethe lower ends,to which the connecting-rods are attached,and passing through a slot ineach of said rods in a manner to economize space and simplify the costof the apparatus, all as hereinafter described.

Figure l is a side elevation of my improved apparatus. Fig. 2 is avertical sectional elevation taken on the line a w of Fig. l. Figs. 3and 4 are diagrams illustrating the operation of the improvedtransmitting mechanism.

Similarletters of reference indicate corresponding parts.

A is a horizontal shaft ofthe wind-wheel, mounted on thehorizontally-revolvin g cap or turn-table B, which is arranged, as suchsupports commonly are, on the top of the supporting-frame O of anyapproved kind, `and with a large vertical hole through the center forthe apparatus for tran smitting the motion below, which is commonly doneby a bevel-wheel on the said shaft gearing with a bevel-wheel on the topof a vertical shaft extending below and gearing with a horizontal shaftor other suitable means for transmitting motion to the machine to bedriven, which arrangement is objectionable on account of itscomplication and cost, and because the resistance on the drivingshaft isin such direction as to cause the latter to turn around its verticalaxis out of the position to take the wind properly to such extent thatits efficiency is greatly impaired. I propose to transmit the motion bymeans of a pair of cranks, D, set perpendicular to each other, so thatthe resistance to the wind-wheel will be shifted from atendency torevolve the turn-table or cap to a direct resistance to the verticalrotation of the windwheel, and thereby have no tendency to turn thewheel out of the wind. The said cranks are each connected, by a rod, E,with a cross-head or slide for each one, F, being connected toareciprocating rod, G, and the other, F', to arod, H, and both working'on guide-rods or ways I, supported bythe turn-table. These rods G H arearranged in the vertical axis around whi ch the turn -table revolves,and the connections ofthe cross-heads are such as to admit of theirrotation around the said rods, the one, G, of which is fixed in thebearings K, and H works in G, which is hollow. They are confined bytheir supports so as not to rotate, and actua-te the driving-shaft Lthrough the medium of the connecting-rods M and cranks N, the said rodsbeing connected to them one to each, and the cranks being placed 'on theshaft and arranged perpendicularto each other. ln this examplethe shaftL is arranged considerably above the lower ends oftherods GH, passingthrough a slot in each to allow them to work back and forth, and theconnecting-rods M range backward along the said rods, so that the doubleconnecting-rods and cranks attached to one reciprocating rod will notbind or lock, as they would do if rods M and shaft L were extendedbeyond rods H and G in passing the centers, owing to the variations inthe distance in a straight line between the extremes of the twoconnecting-rods when at mid-stroke and at the end of a stroke, whichdifferences amount to the sum of the sines ofthe angle between theperpendicular radiuses and the radiuses of the cranks when atmid-stroke. For instance, the distance from a to a in diagram Fig. 3 isless than from d. to d in a straight line, consequently the apparatuswould lock if so connected; whereas, when connected as in diagram Fig.4, the distances from a to a and from d to d, or any corresponding partsaround the circle, being the same, no diflicultywill be encountered Whenconnected backward in this Way. The arrangement is also desirable toeconomize space between the extremes of the apparatus. This arrangementadmits of employing the upper support K for the rods; also for one ofthesupports of the shaft L. The shaft L may communicate motion to themachinery to be driven by belts or in any other approved Way. rllhe rodH has a hole through it lengthwise, for a rod or cord to pass up to theapparatus employed for opening or closing the vanes.

This arrangement of transmitting gear is simple and cheaper than thecommon arrangements, besides having the advantage in respect of theaction of the resistance on the Wind-wheel before described.

It is not necessary that the shaft L pass through slots in the rods Hand G, for the said shaft may be placed either front or back of saidrods by having extensions like J, Fig. 2, on the rods G and H, forconnecting the rods M, butl prefer to arrange them as I have shown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The connection of the cranked Wind-Wheel shaft tothe reciprocating a-nd transmitting-rods G H, substantially asdescribed, said rods being arranged in the axis of rotation ofthewind-Wheel support, substantially as specified.

2. The arrangement of one of the said tran smitting-rods Within theother, and the driving-shaft L relatively thereto, substantially asspecified.

3. A mechanism for transmitting rotary motion from one crank-shaft toanother, consisting of reciprocating and transmitting-rods G H and theconnecting-rods M, When the shaft to Which motion is imparted, and theconnecting-rods therefor, are arranged or geared back relatively to saidsliding rods, all substantially as specified.

EDVARD H. BANOROFT.

Witnesses ANDREW J. LYNCH, J. A. NOTTINGHAM.

